US4180269A - Weight adjustment of golfing iron heads - Google Patents
Weight adjustment of golfing iron heads Download PDFInfo
- Publication number
- US4180269A US4180269A US05/903,813 US90381378A US4180269A US 4180269 A US4180269 A US 4180269A US 90381378 A US90381378 A US 90381378A US 4180269 A US4180269 A US 4180269A
- Authority
- US
- United States
- Prior art keywords
- plug
- head
- opening
- toe
- heel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0433—Heads with special sole configurations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/047—Heads iron-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49865—Assembling or joining with prestressing of part by temperature differential [e.g., shrink fit]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49945—Assembling or joining by driven force fit
Definitions
- This invention relates generally to golf clubs, and more particularly concerns improvements in irons for use in the rough where grassy conditions normally interfere with desired engagement of the ball with the iron.
- the invention is embodied in the head of a golfing iron which is very simply and advantageously weighted, and particularly in relation to a keel at the bottom of the head of the iron.
- the iron comprises:
- a metallic head having a toe and heel, a front face to strike a golf ball, a rear side, the head having an elongated base portion extending between the toe and heel,
- the plug typically extends to a contoured outer surface defined by the toe, to approximately fill that opening up to the toe contour;
- the means to close the plug may comprise a threaded insert which is received into a threaded bore defined by the plug after the weight material is introduced through that port; the insert also extends to approximately the outer end of the plug, and is jammed in position closing the port through the plug; and the weighting material is confined directly above a keel defined by the iron, for optimum balancing of the club in relation to the keel.
- weighting material as for example Tungsten
- Tungsten may be introduced into the space above the keel, in respect of different clubs in order to achieve relative balance or matching of a set of clubs, without affecting the balance relationship of the keel to the material, since the two are typically in vertically spaced relation.
- FIG. 1 is a rear side elevation of the head of a golfing iron embodying the invention
- FIG. 2 is a toe end elevation of the FIG. 1 head
- FIG. 3 is a front side elevation of the FIG. 1 head, the lower portion of which is cut away to show interior structure;
- FIG. 3a is an enlarged section showing plug reception of a threaded insert
- FIG. 4 is a section taken on lines 4--4 of FIG. 1;
- FIG. 5 is a view taken on lines 5--5 of FIG. 2;
- FIG. 6 is a block diagram showing steps in adjusting the weight of the iron.
- the metallic head 10 of an upright golf club iron 9 includes a hosel 11, toe 12 and heel 13, a front face 14 to strike a golf ball, a rear side 15 recessed at 16, and a base portion 17.
- Front face 14 has an inclination ⁇ from a vertical plane which may vary as required for the intended use of the iron; in this regard, the illustrated iron is intended to represent an iron known as a wedge for which ⁇ is between about 50 degrees from vertical, in FIG. 4.
- An opening 18 is formed in the base portion 17, the opening being elongated intermediate the toe and heel.
- the opening is preferably drilled or otherwise formed to extend from the lower arcuate extent 12a of the toe, and toward the heel, the opening having an inner end wall 19 and a bore wall 20. Note that the opening is located generally near lower wall 16a of recess 16, in FIG. 4.
- a plug 21 is received in the opening 18 with gripping engagement with the head metal about the opening, to retain the plug in position.
- the plug may consist of metal, as for example brass, and it has interference engagement with the bore 20.
- the plug may be forced into the opening, or it may be cooled well below the temperature of the head, and then inserted into the opening and allowed to come up to head temperature, expanding to grip the bore.
- the plug is typically less than one inch long, whereas the length of the opening 18 is typically over one inch, as for example 15/8 inch.
- the temperature coefficient of the plug and head metal are typically about the same.
- a space 22 remains between the plug and the end wall 19 to receive head weighting material 40 which is comminuted.
- head weighting material 40 which is comminuted.
- One example is heavy metal powder such as Tungsten, of greater density than steel.
- a precise amount of such powder is inserted into space 22 via a through port 24 in the plug.
- the plug itself may be tubular.
- the port bore is threaded along only part of its length to receive an exteriorly threaded insert such as set screw 25. The forward end of the latter jams against the plug shoulder 26 at the transition between bore 24 and thread 27, as best seen in FIG. 3a, whereby the insert is tightly retained in position.
- a tool to rotate the end slotted insert is shown at 35.
- the insert material may consist of brass to facilitate is removal from the plug, if desired to replace material 40. Accordingly, the need for drilling a long through bore through the head is avoided; any need for a ceramic core is eliminated; only a relatively short length opening 20 is required and may be conveniently drilled; and the retention means for the heavy weighting powder is extremely simple and easy to fabricate and insert.
- the outer end 21a of the plug 21 is rounded to match the surface contour of the club toe 12. Originally, the plug end may protrude as indicated by broken lines 21b; however, it is subsequently ground down to match the toe contour.
- the insert outer end 25a extends to approximately the contoured end of the plug.
- the structure is such as to serve to lighten the weight of the club head as well as to enable accurate and rapid balancing as required to "match" a set of irons.
- the recess 16 which contributes to the light weight characteristics of the head, is directly above the base portion 17 that contains the plug 21.
- the inner wall 16a of the recess and the front face 14 define therebetween a relatively thin plate 28 which receives the direct impact developed when the head strikes the golf ball.
- Hosel 11 includes an elongated stem 11a which contains an elongated bore 29, the latter also contributing to reduction of head weight.
- the stem is attached to the club shaft 30 as by a telescopic interfit of the shaft end over the stem, at 30a in FIG. 1.
- the front face 14 has lower edge portions 14a and 14b which taper downwardly and toward one another from the toe and heel, respectively, thereby to define an apex portion 14c.
- the latter is generally below the center of the ball striking zone (as delineated by the horizontal grooves 36 in the front face), the apex portion being downwardly convexly rounded.
- the head underside between the toe and heel also defines a keel 31 extending from the apex portion as a rearwardly elongated extension thereof, the keel being downwardly rounded or convex.
- the underside of the base 17 has faces 32 and 33 at opposite sides of the keel and which have downward concavity. Note that the extent “h” of the keel, of height "t” is below balancing or weighting material 40, in FIG. 3, in a direction looking rearwardly toward the front face of the club, with the keel resting flatly on horizontal surface 34.
- the faces 32 and 33 extend forwardly toward the front face and merge at rounded edges with the downwardly tapering edge lower portions of the front face.
- the grass is parted by the keel away from the front face grooving 30, the balance weighting of the club is generally centered with respect to the keel, and located closely above the keel, and the balancing (absence of head steel in opening 20 plus presence of plug 21, insert 25 and powder 40) compensates for the additional weight of the steel keel, so that the club does not "feel" or swing differently, in the estimation of the golfer, from a club lacking such a steel keel.
- the method of adjusting the weight of the club head is designated in FIG. 6.
- the rough iron is formed, as indicated by step #1 after which opening 20 is formed in the steel head, as indicated by step #2.
- Step #3 involves forcible insertion of the plug 21 into the opening 20 leaving a portion of the plug protruding from the toe, as indicated at 21b in FIG. 3a.
- the head 10 is then ground, removing excess plug material (to contour line 21a in FIG. 3a), and then polished, as seen in step #4.
- Step #5 involves insertion of weighting powder through the plug and into space 22; and finally, the plug is closed by insertion of insert 25, as indicated by step #6.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Abstract
An opening is formed in a golf iron head, the opening having an inner wall; a tubular plug is affixed in the opening; the head is exteriorly finished; comminuted weighting material is inserted through the tubular plug into a local interior region of the opening between the wall and plug; and the plug is then closed.
Description
This invention relates generally to golf clubs, and more particularly concerns improvements in irons for use in the rough where grassy conditions normally interfere with desired engagement of the ball with the iron.
It is known that the ball striking face of an iron should engage the ball in such manner that controlled backspin is imparted to the golf ball. This function is impaired when the ball lies in the rough, for the grass will tend to come between the ball and the grooved striking face of the iron head in such manner that it will interfere with frictional contact and will prevent development of proper ball backspin. No way was known, prior to the present invention, to solve this problem in the manner affording unusual and special advantages in construction, mode of operation and results as described herein. Such advantages exceed those described in my prior U.S. Pat. No. 3,961,796, as will appear. In this regard, prior constructions required the use of a ceramic core to form an opening in the head to receive weighting powder. Leaching of the core to remove it frequently resulted in fracture development in the head itself. Other weight adjustment methods as by adding steel wool, lead or set screws in the shank of the club led to problems with changing the center of gravity of the club.
The invention is embodied in the head of a golfing iron which is very simply and advantageously weighted, and particularly in relation to a keel at the bottom of the head of the iron. Basically, the iron comprises:
(a) a metallic head having a toe and heel, a front face to strike a golf ball, a rear side, the head having an elongated base portion extending between the toe and heel,
(b) an opening formed in the base portion and elongated intermediate the toe and the heel, the opening having an inner end wall and a bore wall,
(c) a plug received in said opening with gripping engagement with head metal about the opening to retain the plug in position, there being a space between the plug and said inner end wall, the plug containing a through port to pass head weighting material from the exterior through the plug and into said space, said material being comminuted,
(d) said opening adapted to receive means to close said port.
As will be seen, the plug typically extends to a contoured outer surface defined by the toe, to approximately fill that opening up to the toe contour; the means to close the plug may comprise a threaded insert which is received into a threaded bore defined by the plug after the weight material is introduced through that port; the insert also extends to approximately the outer end of the plug, and is jammed in position closing the port through the plug; and the weighting material is confined directly above a keel defined by the iron, for optimum balancing of the club in relation to the keel. In this regard, greater or lesser amounts of the weighting material (as for example Tungsten) may be introduced into the space above the keel, in respect of different clubs in order to achieve relative balance or matching of a set of clubs, without affecting the balance relationship of the keel to the material, since the two are typically in vertically spaced relation.
These and other objects and advantages of the invention, as well as the details of illustrative embodiment, will be more fully understood from the following description and drawings, in which:
FIG. 1 is a rear side elevation of the head of a golfing iron embodying the invention;
FIG. 2 is a toe end elevation of the FIG. 1 head;
FIG. 3 is a front side elevation of the FIG. 1 head, the lower portion of which is cut away to show interior structure;
FIG. 3a is an enlarged section showing plug reception of a threaded insert;
FIG. 4 is a section taken on lines 4--4 of FIG. 1;
FIG. 5 is a view taken on lines 5--5 of FIG. 2; and
FIG. 6 is a block diagram showing steps in adjusting the weight of the iron.
Referring first to FIGS. 1-5 the metallic head 10 of an upright golf club iron 9 includes a hosel 11, toe 12 and heel 13, a front face 14 to strike a golf ball, a rear side 15 recessed at 16, and a base portion 17. Front face 14 has an inclination α from a vertical plane which may vary as required for the intended use of the iron; in this regard, the illustrated iron is intended to represent an iron known as a wedge for which α is between about 50 degrees from vertical, in FIG. 4.
An opening 18 is formed in the base portion 17, the opening being elongated intermediate the toe and heel. The opening is preferably drilled or otherwise formed to extend from the lower arcuate extent 12a of the toe, and toward the heel, the opening having an inner end wall 19 and a bore wall 20. Note that the opening is located generally near lower wall 16a of recess 16, in FIG. 4.
A plug 21 is received in the opening 18 with gripping engagement with the head metal about the opening, to retain the plug in position. Typically, the plug may consist of metal, as for example brass, and it has interference engagement with the bore 20. For example, the plug may be forced into the opening, or it may be cooled well below the temperature of the head, and then inserted into the opening and allowed to come up to head temperature, expanding to grip the bore. The plug is typically less than one inch long, whereas the length of the opening 18 is typically over one inch, as for example 15/8 inch. The temperature coefficient of the plug and head metal (such as steel) are typically about the same.
In plug inserted position, a space 22 remains between the plug and the end wall 19 to receive head weighting material 40 which is comminuted. One example is heavy metal powder such as Tungsten, of greater density than steel. A precise amount of such powder, as determined by balancing the club after completion of fabrication, is inserted into space 22 via a through port 24 in the plug. For that purpose, the plug itself may be tubular. Also, the port bore is threaded along only part of its length to receive an exteriorly threaded insert such as set screw 25. The forward end of the latter jams against the plug shoulder 26 at the transition between bore 24 and thread 27, as best seen in FIG. 3a, whereby the insert is tightly retained in position. A tool to rotate the end slotted insert is shown at 35. The insert material may consist of brass to facilitate is removal from the plug, if desired to replace material 40. Accordingly, the need for drilling a long through bore through the head is avoided; any need for a ceramic core is eliminated; only a relatively short length opening 20 is required and may be conveniently drilled; and the retention means for the heavy weighting powder is extremely simple and easy to fabricate and insert. Note that the outer end 21a of the plug 21 is rounded to match the surface contour of the club toe 12. Originally, the plug end may protrude as indicated by broken lines 21b; however, it is subsequently ground down to match the toe contour. The insert outer end 25a extends to approximately the contoured end of the plug. Further, the structure is such as to serve to lighten the weight of the club head as well as to enable accurate and rapid balancing as required to "match" a set of irons. Note that the recess 16, which contributes to the light weight characteristics of the head, is directly above the base portion 17 that contains the plug 21. The inner wall 16a of the recess and the front face 14 define therebetween a relatively thin plate 28 which receives the direct impact developed when the head strikes the golf ball.
Hosel 11 includes an elongated stem 11a which contains an elongated bore 29, the latter also contributing to reduction of head weight. The stem is attached to the club shaft 30 as by a telescopic interfit of the shaft end over the stem, at 30a in FIG. 1.
The front face 14 has lower edge portions 14a and 14b which taper downwardly and toward one another from the toe and heel, respectively, thereby to define an apex portion 14c. The latter is generally below the center of the ball striking zone (as delineated by the horizontal grooves 36 in the front face), the apex portion being downwardly convexly rounded.
The head underside between the toe and heel also defines a keel 31 extending from the apex portion as a rearwardly elongated extension thereof, the keel being downwardly rounded or convex. Further, the underside of the base 17 has faces 32 and 33 at opposite sides of the keel and which have downward concavity. Note that the extent "h" of the keel, of height "t" is below balancing or weighting material 40, in FIG. 3, in a direction looking rearwardly toward the front face of the club, with the keel resting flatly on horizontal surface 34.
In addition, the faces 32 and 33 extend forwardly toward the front face and merge at rounded edges with the downwardly tapering edge lower portions of the front face. As a result, the grass is parted by the keel away from the front face grooving 30, the balance weighting of the club is generally centered with respect to the keel, and located closely above the keel, and the balancing (absence of head steel in opening 20 plus presence of plug 21, insert 25 and powder 40) compensates for the additional weight of the steel keel, so that the club does not "feel" or swing differently, in the estimation of the golfer, from a club lacking such a steel keel.
The method of adjusting the weight of the club head is designated in FIG. 6. As there shown, the rough iron is formed, as indicated by step # 1 after which opening 20 is formed in the steel head, as indicated by step #2. Step #3 involves forcible insertion of the plug 21 into the opening 20 leaving a portion of the plug protruding from the toe, as indicated at 21b in FIG. 3a. The head 10 is then ground, removing excess plug material (to contour line 21a in FIG. 3a), and then polished, as seen in step #4. Step # 5 involves insertion of weighting powder through the plug and into space 22; and finally, the plug is closed by insertion of insert 25, as indicated by step #6.
Claims (3)
1. In a golf iron,
(a) a metallic head having a toe and heel, a front face to strike a golf ball, a rear side, the head having an elongated base portion extending between the toe and heel,
(b) an opening formed in the base portion and elongated intermediate the toe and the heel, the opening having an inner end wall and a bore wall,
(c) a tubular plug received in said opening with gripping engagement with head metal about the opening to retain the plug in position, there being a space between the plug and said inner end wall, the plug containing a through port to pass head weighting material from the exterior through the plug and into said space after the plug is in place, said material being comminuted,
(d) and insert means threadably received in said port to close said port, the insert means having an innermost end,
(e) said space generally centrally located between the toe and heel,
(f) the plug defining an interior annular shoulder against which an end portion of the insert means is jammed to locate said innermost end proximate the inner end of the plug.
2. The golf iron of claim 1 including said weighting powder in said space, said powder having a density greater than that of said head metal.
3. The golf iron of claim 1 wherein said head includes a rearwardly extending, downwardly projecting keel at the bottom of said base portion, said keel located about mid-way between said toe and heel, and said opening extends from said toe toward the heel but terminates at said end wall which is above the keel.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US05/903,813 US4180269A (en) | 1978-05-08 | 1978-05-08 | Weight adjustment of golfing iron heads |
AU39737/78A AU517798B2 (en) | 1978-05-08 | 1978-09-11 | Golf iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/903,813 US4180269A (en) | 1978-05-08 | 1978-05-08 | Weight adjustment of golfing iron heads |
Publications (1)
Publication Number | Publication Date |
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US4180269A true US4180269A (en) | 1979-12-25 |
Family
ID=25418111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/903,813 Expired - Lifetime US4180269A (en) | 1978-05-08 | 1978-05-08 | Weight adjustment of golfing iron heads |
Country Status (2)
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US (1) | US4180269A (en) |
AU (1) | AU517798B2 (en) |
Cited By (50)
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JPS5714363A (en) * | 1980-06-25 | 1982-01-25 | Thompson Stanley C | Method of adjusting weight of golf iron |
US4756534A (en) * | 1985-01-14 | 1988-07-12 | Thompson Stanley C | Golf club |
GB2212402A (en) * | 1987-11-20 | 1989-07-26 | Terence Kenneth Broughall | Core holed golf club |
US5013041A (en) * | 1990-01-22 | 1991-05-07 | Cipa Manufacturing Corporation | Golf driver with variable weighting for changing center of gravity |
US5195747A (en) * | 1992-05-26 | 1993-03-23 | Choy Jung Soo | Golf club |
US5297794A (en) * | 1993-01-14 | 1994-03-29 | Lu Clive S | Golf club and golf club head |
US5385348A (en) * | 1993-11-15 | 1995-01-31 | Wargo; Elmer | Method and system for providing custom designed golf clubs having replaceable swing weight inserts |
US5409219A (en) * | 1993-07-01 | 1995-04-25 | Saksun, Sr.; John | Weighted golf club head |
EP0734746A1 (en) * | 1995-03-27 | 1996-10-02 | Wilson Sporting Goods Company | Golf club with skewed sole |
US5688189A (en) * | 1995-11-03 | 1997-11-18 | Bland; Bertram Alvin | Golf putter |
US5774970A (en) * | 1996-07-24 | 1998-07-07 | Huang; Hui Ming | Manufacturing process of a golf club head |
US5913735A (en) * | 1997-11-14 | 1999-06-22 | Royal Collection Incorporated | Metallic golf club head having a weight and method of manufacturing the same |
US6012989A (en) * | 1997-10-22 | 2000-01-11 | Saksun, Sr.; John | Golf club head |
US6042357A (en) * | 1997-03-27 | 2000-03-28 | Adams; Robert Stewart | Apparatus for weighting golf club heads and shafts |
WO2000043080A1 (en) * | 1999-01-22 | 2000-07-27 | Acushnet Company | Golf club head with weight adjustment |
US6210290B1 (en) | 1999-06-11 | 2001-04-03 | Callaway Golf Company | Golf club and weighting system |
US6364788B1 (en) | 2000-08-04 | 2002-04-02 | Callaway Golf Company | Weighting system for a golf club head |
US20020061788A1 (en) * | 1999-11-12 | 2002-05-23 | Michael Marcase | Golf club and club head |
US6477916B2 (en) * | 1999-08-18 | 2002-11-12 | General Electric Company | Methods of installing a balance weight for a rotary component in turbomachinery |
US6533679B1 (en) | 2000-04-06 | 2003-03-18 | Acushnet Company | Hollow golf club |
US20040214658A1 (en) * | 2003-04-25 | 2004-10-28 | Meyer Dean E. | Golf club head with ports and weighted rods for adjusting weight and center of gravity |
US20050096151A1 (en) * | 2003-10-28 | 2005-05-05 | Wen-Ching Hou | Combination of a golf club head and a weight member |
US20060025237A1 (en) * | 2004-07-29 | 2006-02-02 | Callaway Golf Company | Iron-Type Golf Club |
US20060100029A1 (en) * | 2004-11-09 | 2006-05-11 | Lai-Fa Lo | Golf club head with damping member |
US7189169B2 (en) | 2002-01-10 | 2007-03-13 | Dogleg Right Corporation | Customizable center-of-gravity golf club head |
CN100339140C (en) * | 2005-01-25 | 2007-09-26 | 超威科技股份有限公司 | Golf head with adjustable balance position and weight |
US20080020861A1 (en) * | 2006-07-18 | 2008-01-24 | Huffy Sports Delaware, Inc. | Adjustable weight golf clubs |
US20080045353A1 (en) * | 2006-08-15 | 2008-02-21 | Fu Sheng Industrial Co., Ltd. | Club weight-adjusting member for a golf club head |
US7452285B2 (en) | 2002-11-08 | 2008-11-18 | Taylor Made Golf Company, Inc. | Weight kit for golf club head |
US7566276B2 (en) | 2006-04-14 | 2009-07-28 | Dogleg Right Corporation | Multi-piece putter head having an insert |
US20100304890A1 (en) * | 2009-05-29 | 2010-12-02 | Aaron Dill | Wedge type golf club head |
US20110151990A1 (en) * | 2009-12-17 | 2011-06-23 | Guerriero Charles P | Self aligning golf club |
US9061185B2 (en) | 2011-09-20 | 2015-06-23 | Dunlop Sports Co. Ltd. | Correlated set of golf club heads |
US9211450B2 (en) | 2009-05-29 | 2015-12-15 | Acushnet Company | Wedge type golf club head |
US20160059115A1 (en) * | 2014-08-27 | 2016-03-03 | Frank A. Camaratta, Jr. | Method of weighting chess pieces and chess pieces made by the method |
USD762792S1 (en) | 2015-02-12 | 2016-08-02 | Acushnet Company | Wedge golf club head |
USD773574S1 (en) | 2015-02-12 | 2016-12-06 | Acushnet Company | Wedge golf club set |
US9713751B2 (en) | 2009-05-29 | 2017-07-25 | Acushnet Company | Wedge type golf club head |
US20180185717A1 (en) * | 2016-12-29 | 2018-07-05 | Taylor Made Golf Company, Inc | Golf club head |
USD829837S1 (en) | 2017-03-01 | 2018-10-02 | Acushnet Company | Wedge golf club |
USD832953S1 (en) | 2017-07-18 | 2018-11-06 | Karsten Manufacturing Corporation | Golf club head |
USD832952S1 (en) | 2017-07-18 | 2018-11-06 | Karsten Manufacturing Corporation | Golf club head |
US10596428B1 (en) * | 2019-08-14 | 2020-03-24 | Clive Roy Rumble | Golf club |
USD895039S1 (en) | 2019-02-01 | 2020-09-01 | Karsten Manufacturing Corporation | Golf club head |
US10881925B2 (en) | 2016-12-29 | 2021-01-05 | Taylor Made Golf Company, Inc. | Golf club head |
US20210362010A1 (en) * | 2016-09-30 | 2021-11-25 | Sumitomo Rubber Industries, Ltd. | Golf club head |
USD947970S1 (en) | 2020-07-08 | 2022-04-05 | Karsten Manufacturing Corporation | Golf club head |
US11559727B2 (en) | 2016-12-29 | 2023-01-24 | Taylor Made Golf Company, Inc. | Golf club head |
USD986365S1 (en) | 2021-02-09 | 2023-05-16 | Karsten Manufacturing Corporation | Golf club head |
US11786787B2 (en) | 2016-09-30 | 2023-10-17 | Sumitomo Rubber Industries, Ltd. | Golf club head |
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US3625518A (en) * | 1969-05-23 | 1971-12-07 | Karsten Solheim | Golf club head with complex curvature for the sole and/or the striking face |
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US3961796A (en) * | 1973-06-11 | 1976-06-08 | Thompson Stanley C | Golfing iron head with downwardly tapered keel |
US4145052A (en) * | 1977-05-03 | 1979-03-20 | Janssen Robert L | Golfing iron with weight adjustment |
-
1978
- 1978-05-08 US US05/903,813 patent/US4180269A/en not_active Expired - Lifetime
- 1978-09-11 AU AU39737/78A patent/AU517798B2/en not_active Expired
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US3212783A (en) * | 1962-05-21 | 1965-10-19 | Jackson D Bradley | Golf club head |
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US3625518A (en) * | 1969-05-23 | 1971-12-07 | Karsten Solheim | Golf club head with complex curvature for the sole and/or the striking face |
US3761095A (en) * | 1972-01-12 | 1973-09-25 | S Thompson | Golf club head with sole plate-keel attachment |
US3961796A (en) * | 1973-06-11 | 1976-06-08 | Thompson Stanley C | Golfing iron head with downwardly tapered keel |
US3897066A (en) * | 1973-11-28 | 1975-07-29 | Peter A Belmont | Golf club heads and process |
US4145052A (en) * | 1977-05-03 | 1979-03-20 | Janssen Robert L | Golfing iron with weight adjustment |
Cited By (74)
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JPS5714363A (en) * | 1980-06-25 | 1982-01-25 | Thompson Stanley C | Method of adjusting weight of golf iron |
US4756534A (en) * | 1985-01-14 | 1988-07-12 | Thompson Stanley C | Golf club |
GB2212402A (en) * | 1987-11-20 | 1989-07-26 | Terence Kenneth Broughall | Core holed golf club |
GB2212402B (en) * | 1987-11-20 | 1992-07-01 | Terence Kenneth Broughall | Golf club |
US5013041A (en) * | 1990-01-22 | 1991-05-07 | Cipa Manufacturing Corporation | Golf driver with variable weighting for changing center of gravity |
US5195747A (en) * | 1992-05-26 | 1993-03-23 | Choy Jung Soo | Golf club |
US5297794A (en) * | 1993-01-14 | 1994-03-29 | Lu Clive S | Golf club and golf club head |
US5409219A (en) * | 1993-07-01 | 1995-04-25 | Saksun, Sr.; John | Weighted golf club head |
US5385348A (en) * | 1993-11-15 | 1995-01-31 | Wargo; Elmer | Method and system for providing custom designed golf clubs having replaceable swing weight inserts |
EP0734746A1 (en) * | 1995-03-27 | 1996-10-02 | Wilson Sporting Goods Company | Golf club with skewed sole |
US5688189A (en) * | 1995-11-03 | 1997-11-18 | Bland; Bertram Alvin | Golf putter |
US5774970A (en) * | 1996-07-24 | 1998-07-07 | Huang; Hui Ming | Manufacturing process of a golf club head |
US6042357A (en) * | 1997-03-27 | 2000-03-28 | Adams; Robert Stewart | Apparatus for weighting golf club heads and shafts |
US6012989A (en) * | 1997-10-22 | 2000-01-11 | Saksun, Sr.; John | Golf club head |
US5913735A (en) * | 1997-11-14 | 1999-06-22 | Royal Collection Incorporated | Metallic golf club head having a weight and method of manufacturing the same |
GB2361875B (en) * | 1999-01-22 | 2003-07-23 | Acushnet Co | Golf club head with weight adjustment |
US6306048B1 (en) | 1999-01-22 | 2001-10-23 | Acushnet Company | Golf club head with weight adjustment |
GB2361875A (en) * | 1999-01-22 | 2001-11-07 | Acushnet Co | Golf club head with weight adjustment |
WO2000043080A1 (en) * | 1999-01-22 | 2000-07-27 | Acushnet Company | Golf club head with weight adjustment |
US6210290B1 (en) | 1999-06-11 | 2001-04-03 | Callaway Golf Company | Golf club and weighting system |
US6477916B2 (en) * | 1999-08-18 | 2002-11-12 | General Electric Company | Methods of installing a balance weight for a rotary component in turbomachinery |
US20020061788A1 (en) * | 1999-11-12 | 2002-05-23 | Michael Marcase | Golf club and club head |
US6533679B1 (en) | 2000-04-06 | 2003-03-18 | Acushnet Company | Hollow golf club |
US6364788B1 (en) | 2000-08-04 | 2002-04-02 | Callaway Golf Company | Weighting system for a golf club head |
US6475102B2 (en) | 2000-08-04 | 2002-11-05 | Callaway Golf Company | Golf club head |
US6434811B1 (en) | 2000-08-04 | 2002-08-20 | Callaway Golf Company | Weighting system for a golf club head |
US8177662B2 (en) | 2002-01-10 | 2012-05-15 | Dogleg Right Corporation | Golf club head weight with seal and vibration dampener |
US7828672B2 (en) | 2002-01-10 | 2010-11-09 | Dogleg Right Corporation | Ball flight adjustment apparatus for a golf club head |
US7189169B2 (en) | 2002-01-10 | 2007-03-13 | Dogleg Right Corporation | Customizable center-of-gravity golf club head |
US7344450B2 (en) | 2002-01-10 | 2008-03-18 | Dogleg Right Corporation | Method for adjusting the center of gravity of a golf club head |
US7452285B2 (en) | 2002-11-08 | 2008-11-18 | Taylor Made Golf Company, Inc. | Weight kit for golf club head |
US20040214658A1 (en) * | 2003-04-25 | 2004-10-28 | Meyer Dean E. | Golf club head with ports and weighted rods for adjusting weight and center of gravity |
US6923734B2 (en) * | 2003-04-25 | 2005-08-02 | Jas. D. Easton, Inc. | Golf club head with ports and weighted rods for adjusting weight and center of gravity |
US20050096151A1 (en) * | 2003-10-28 | 2005-05-05 | Wen-Ching Hou | Combination of a golf club head and a weight member |
US7083531B2 (en) | 2004-07-29 | 2006-08-01 | Callaway Golf Company | Iron-type golf club |
US20060025237A1 (en) * | 2004-07-29 | 2006-02-02 | Callaway Golf Company | Iron-Type Golf Club |
US20060100029A1 (en) * | 2004-11-09 | 2006-05-11 | Lai-Fa Lo | Golf club head with damping member |
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US8382604B2 (en) | 2006-04-14 | 2013-02-26 | Dogleg Right Corporation | Modular hosel, weight-adjustable golf club head assembly |
US7566276B2 (en) | 2006-04-14 | 2009-07-28 | Dogleg Right Corporation | Multi-piece putter head having an insert |
US20080020861A1 (en) * | 2006-07-18 | 2008-01-24 | Huffy Sports Delaware, Inc. | Adjustable weight golf clubs |
US20080045353A1 (en) * | 2006-08-15 | 2008-02-21 | Fu Sheng Industrial Co., Ltd. | Club weight-adjusting member for a golf club head |
US20100304890A1 (en) * | 2009-05-29 | 2010-12-02 | Aaron Dill | Wedge type golf club head |
US9713751B2 (en) | 2009-05-29 | 2017-07-25 | Acushnet Company | Wedge type golf club head |
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US9782644B2 (en) | 2011-09-20 | 2017-10-10 | Dunlop Sports Co., Ltd. | Correlated set of golf club heads |
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US11000757B2 (en) * | 2014-08-27 | 2021-05-11 | The House Of Staunton, Inc. | Method of weighting chess pieces |
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Also Published As
Publication number | Publication date |
---|---|
AU517798B2 (en) | 1981-08-27 |
AU3973778A (en) | 1980-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CALLAWAY GOLF COMPANY, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THOMPSON, STANLEY CARL;REEL/FRAME:007696/0746 Effective date: 19950523 |